import {defineStore} from "pinia";
import {store} from "@/store";
import {TagsViewState} from "@/store/interface";

const tagsViewStore = defineStore({
    id: "tagsView",
    state: (): TagsViewState => ({
        visitedViews: [],
        cachedViews: []
    }),
    actions: {
        addVisitedView(view: any) {
            if (this.visitedViews.some(v => v.path === view.path)) return
            this.visitedViews.push(
                Object.assign({}, view, {
                    title: view.meta?.title || 'no-name'
                })
            )
        },
        addCachedView(view: any) {
            if (this.cachedViews.includes(view.name)) return
            if (!view.meta.noCache) {
                this.cachedViews.push(view.name)
            }
        },

        delVisitedView(view: any) {
            return new Promise(resolve => {
                for (const [i, v] of this.visitedViews.entries()) {
                    if (v.path === view.path) {
                        this.visitedViews.splice(i, 1)
                        break
                    }
                }
                resolve([...this.visitedViews])
            })

        },
        delCachedView(view: any) {
            return new Promise(resolve => {
                const index = this.cachedViews.indexOf(view.name)
                index > -1 && this.cachedViews.splice(index, 1)
                resolve([...this.cachedViews])
            })

        },

        delOtherVisitedViews(view: any) {
            return new Promise(resolve => {
                this.visitedViews = this.visitedViews.filter(v => {
                    return v.meta?.affix || v.path === view.path
                })
                resolve([...this.visitedViews])
            })

        },
        delOtherCachedViews(view: any) {
            return new Promise(resolve => {
                const index = this.cachedViews.indexOf(view.name)
                if (index > -1) {
                    this.cachedViews = this.cachedViews.slice(index, index + 1)
                } else {
                    // if index = -1, there is no cached tags
                    this.cachedViews = []
                }
                resolve([...this.cachedViews])
            })

        },

        updateVisitedView(view: any) {
            for (let v of this.visitedViews) {
                if (v.path === view.path) {
                    v = Object.assign(v, view)
                    break
                }
            }
        },
        addView(view: any) {
            this.addVisitedView(view)
            this.addCachedView(view)
        },
        delView(view: any) {
            return new Promise(resolve => {
                this.delVisitedView(view)
                this.delCachedView(view)
                resolve({
                    visitedViews: [...this.visitedViews],
                    cachedViews: [...this.cachedViews]
                })
            })
        },
        delOtherViews(view: any) {
            return new Promise(resolve => {
                this.delOtherVisitedViews(view)
                this.delOtherCachedViews(view)
                resolve({
                    visitedViews: [...this.visitedViews],
                    cachedViews: [...this.cachedViews]
                })
            })
        },
        delLeftViews(view: any) {
            return new Promise(resolve => {
                const currIndex = this.visitedViews.findIndex(v => v.path === view.path)
                if (currIndex === -1) {
                    return
                }
                this.visitedViews = this.visitedViews.filter((item, index) => {
                    // affix:true 固定tag，例如“首页”
                    if (index >= currIndex || (item.meta && item.meta.affix)) {
                        return true
                    }

                    const cacheIndex = this.cachedViews.indexOf(item.name as  string)
                    if (cacheIndex > -1) {
                        this.cachedViews.splice(cacheIndex, 1)
                    }
                    return false
                })
                resolve({
                    visitedViews: [...this.visitedViews]
                })
            })
        },
        delRightViews(view: any) {
            return new Promise(resolve => {
                const currIndex = this.visitedViews.findIndex(v => v.path === view.path)
                if (currIndex === -1) {
                    return
                }
                this.visitedViews = this.visitedViews.filter((item, index) => {
                    // affix:true 固定tag，例如“首页”
                    if (index <= currIndex || (item.meta && item.meta.affix)) {
                        return true
                    }

                    const cacheIndex = this.cachedViews.indexOf(item.name as string)
                    if (cacheIndex > -1) {
                        this.cachedViews.splice(cacheIndex, 1)
                    }
                    return false
                })
                resolve({
                    visitedViews: [...this.visitedViews]
                })
            })
        },
        delAllViews(view: any) {
            return new Promise(resolve => {
                const affixTags = this.visitedViews.filter(tag => tag.meta?.affix)
                this.visitedViews = affixTags
                this.cachedViews = []
                resolve({
                    visitedViews: [...this.visitedViews],
                    cachedViews: [...this.cachedViews]
                })
            })
        },
        delAllVisitedViews() {
            return new Promise(resolve => {
                const affixTags = this.visitedViews.filter(tag => tag.meta?.affix)
                this.visitedViews = affixTags
                resolve([...this.visitedViews])
            })
        },
        delAllCachedViews() {
            return new Promise(resolve => {
                this.cachedViews = []
                resolve([...this.cachedViews])
            })
        },
    }
})


export function tagsViewStoreHook() {
    return tagsViewStore(store);
}

